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Recent benthic foraminifera from off the coast of Arkattuthurai (near Nagapattinam), south east coast of India

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Title Recent benthic foraminifera from off the coast of Arkattuthurai (near Nagapattinam), south east coast of India
 
Creator Elakkiya, P.
Manivannan, V.
 
Subject Foraminifera
Sedimentological parameters
Ecology
Arkattuthurai
 
Description 877-887
Sediment samples were collected from 12 stations ranging in depth from
<1 m to 6m for the study of foraminiferal fauna. In the present study, 41
foraminiferal species belonging to 22 genera have been identified. It consists
4 arenaceous agglutinated, 16 calcareous porcelaneous and the rest 21
calcareous perforate. Shore station is poorly populated while intermediate
stations of the traverse (station 6 and 7) have a large population. Among the
41 foraminiferal species, the following species viz., Ammonia beccarii, A. dentata, A. tepida, Asterorotalia inflata,
Elphidium crispum, Osangularia venusta, and Quinqueloculina seminulum are found to be widespread and
abundantly occurring. Sedimentological parameters such as CaCO3,
organic matter determined from all these samples ranging from 11.26 – 12.22%,
0.67 - 0.90%, respectively. Out of the possible 12 sediment types (Trefethen,
1950) only three namely, sand, silty sand and clay sand are represented in this
area. Among these three sediment types the most accommodative substrate for
foraminiferal species has been found to be clay sand in the present area. Main
ecological parameters which govern the distribution of foraminifera are organic
matter content, calcium carbonate content and nature of the substrate.
 
Date 2013-12-13T12:59:48Z
2013-12-13T12:59:48Z
2013-11
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/24827
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.42(7) [November 2013]